137444719 has 2 divisors, whose sum is σ = 137444720. Its totient is φ = 137444718.

The previous prime is 137444707. The next prime is 137444819. The reversal of 137444719 is 917444731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137444719 - 2¹³ = 137436527 is a prime.

It is a super-2 number, since 2×137444719² = 37782101561977922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137444819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68722359 + 68722360.

It is an arithmetic number, because the mean of its divisors is an integer number (68722360).

Almost surely, 2^137444719 is an apocalyptic number.

137444719 is a deficient number, since it is larger than the sum of its proper divisors (1).

137444719 is an equidigital number, since it uses as much as digits as its factorization.

137444719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 137444719 is about 11723.6819728275. The cubic root of 137444719 is about 516.0708781811.

The spelling of 137444719 in words is "one hundred thirty-seven million, four hundred forty-four thousand, seven hundred nineteen".